Re: [Alsa-user] Korg Triton Extreme USB MIDI interface

[Clemens L. <cl...@la...>]

Jason Balicki wrote:
> I just got a Korg Triton Extreme.  The EX has a usb interface
> on it that allows storage and MIDI access to the device from
> a host PC.  I can't seem to get ALSA to recognize it as
> a MIDI interface.
>
> relevent part of "lsusb -v" output:
>
>     Interface Descriptor:
>       bInterfaceNumber        1
>       bInterfaceClass         1 Audio
>       bInterfaceSubClass      3 Non Streaming
>       bInterfaceProtocol      0

This device doesn't have an Audio Control Interface which would be
required by the USB Audio Specification.  usb-midi doesn't care, but
snd-usb-audio has stricter error checking.

Please try to apply the patch below and recompile ALSA.


HTH
Clemens
-- 

--- alsa-kernel/usb/usbquirks.h.org	2004-06-14 19:07:45.038029000 +0200
+++ alsa-kernel/usb/usbquirks.h	2004-07-01 09:31:23.846410000 +0200
@@ -937,6 +937,16 @@
 },

 {
+	USB_DEVICE(0x0944, 0x0010),
+	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
+		.vendor_name = "Korg",
+		.product_name = "Triton Extreme",
+		.ifnum = 1,
+		.type = QUIRK_MIDI_STANDARD_INTERFACE
+	}
+},
+
+{
 	USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0013),
 	.driver_info = (unsigned long) & (const snd_usb_audio_quirk_t) {
 		.vendor_name = "Terratec",